Natural size, made of plastic. The model includes the torso on the base, the female external genitalia with the urethra, and the elastic fastening closure device for the bladder (removable inspection window and threaded closure cap). Six replaceable parts show typical bladder disease and can be used to assess changes in the bladder. To check, the endoscope is inserted into the urethra through a flexible valve opening in the bladder. By changing the lens-professional grade lens or bladder lens-the shaft can stay in the urethra and bladder.